Now, let's look at the types of systems. Exhaust-only. All right, let's get this one out of the way first. Using exhaust fans is great for local ventilation of bathrooms, kitchens, garages, and sub-slab areas (for radon control), but it's not a great strategy for whole-house ventilation. It does have some advantages: It's cheap.
When writing Common Sense, Paine wanted to show the common man why the United States should be independent of England. He also wanted to show these people that they had the resources needed to build a navy.
Thomas Paine, Common Sense, 1776, selections PDF. Praise for Common Sense in American newspapers, 1776 PDF. A Loyalist responds to Common Sense: Rev. Charles Inglis, The Deceiver Unmasked, 1776, selections PDF. A poem on Common Sense: Hannah Griffitts, Upon reading a Book entitled Common Sense, 1776 PDF.